CN104695300B - The technique of a kind of bituminous paving inspection shaft lifting and lift structure thereof - Google Patents
The technique of a kind of bituminous paving inspection shaft lifting and lift structure thereof Download PDFInfo
- Publication number
- CN104695300B CN104695300B CN201510062708.4A CN201510062708A CN104695300B CN 104695300 B CN104695300 B CN 104695300B CN 201510062708 A CN201510062708 A CN 201510062708A CN 104695300 B CN104695300 B CN 104695300B
- Authority
- CN
- China
- Prior art keywords
- inspection shaft
- concrete
- well
- well seat
- reinforcing bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Road Paving Structures (AREA)
- Road Repair (AREA)
Abstract
The invention discloses technique and lift structure thereof that a kind of bituminous paving inspection shaft promotes, this technique need to promote above inspection shaft place lower structural layer and between bituminous concrete upper layer, adopts cast-in-place microlith rapid hardening high-strength concrete to carry out the height of cushioning well seat。And reinforcing bar Os Draconis and cushion block etc. are set before cast-in-place microlith rapid hardening high-strength concrete and further ensure that the height of well seat so that the inspection shaft well lid absolute altitude after construction molding is consistent with surrounding asphalt concrete pavement absolute altitude, and flatness controls within 5mm。The present invention passes through cushioning armored concrete, and the intensity after to be solidified bears upper load, thoroughly improves the mass defect that well seat sinks。When adopting cast-in-place microlith rapid hardening high-strength concrete cushioning well seat, utilize its mobility to adjust elevation, and then be conducive to improving road evenness, meet driving comfort level。
Description
Technical field
The invention belongs to road construction field, be specifically related to technique and lift structure thereof that a kind of bituminous paving inspection shaft promotes。
Background technology
Become today of global concern in environmental protection, the positive general trend of events of China's urban road carries out blackened transformation, and dark-coloured pavement road, also known as environmental protection road, is liked by vast urban construction person and civic deeply with its anti-dust, pollution-free, noise reduction, the superiority such as attractive in appearance。But, along with what road " melanism " was transformed constantly carries out, urban road occurs in that new problem, i.e. " road umbilicus-inspection shaft "。
Traditional inspection shaft gug technique is with brick, restriction by the duration, paving of upper layer will be carried out when masonry strength is not up to designing requirement, cause the phenomenons such as well seat in use procedure sinks, well periphery bituminous concrete breaks, cause the formation of " road umbilicus ", both affected attractive in appearance, also can reduction of service life。
Summary of the invention
It is an object of the invention to for problem above, it is provided that the technique of a kind of bituminous paving inspection shaft lifting and lift structure thereof, it is possible to thoroughly solve the common quality defect in inspection shaft gug process, it is ensured that road engineering surface evenness, drive a vehicle comfortable。
For solving above-mentioned technical problem, the technical solution adopted in the present invention is: the technique that a kind of bituminous paving inspection shaft promotes, and concretely comprises the following steps:
1) adopt steel plate that the well head of inspection shaft is covered and fixed, pavement spread the Sub-course Asphalt Concrete at inspection shaft to be hoisted, reversely cut inspection shaft the Sub-course Asphalt Concrete over and around again, remove steel plate, make inspection shaft peripheral and between the Sub-course Asphalt Concrete, reserve the groove of an annular；
2) groove of annular is cleaned out, then reinforcing bar Os Draconis are placed, and need height to be mounted that well seat is pre-fixed according to well seat, internal mold is installed again in inspection shaft, when preventing casting concrete spillage in well seat bottom along forming gap, last microlith rapid hardening high-strength concrete of building in the groove of annular is to concordant with the Sub-course Asphalt Concrete, and all to be encased by whole well seat, maintenance is to normal intensity；
3) at well seat and one layer of sticking layer oil of concrete surface brushing of building, pave bituminous concrete upper layer according to the thickness requirement of bituminous paving, the lifting of bituminous paving inspection shaft can be completed。
In described microlith rapid hardening high-strength concrete, the Particle size requirements of microlith is not more than 15mm, and concrete setting time required less than 5 hours。
With steel plate, the well head of inspection shaft is covered and fixes, be in order to well head is carried out temporary enclosed, in order to asphalt-spreader and road roller can pass through。
Step 2) in when determining that well seat needs height to be mounted, adopt and take a hanging wire and be determined, concrete, by four root length lines centered by the well head of inspection shaft, pull open by " well " font, adjust the height of well lid according to well wordline。
When height above well seat is lower than the height of well wordline, reinforcing bar Os Draconis and microlith high-strength concrete is adopted to carry out padded。Make it have enough intensity, it is possible to bear rolling after completion。
The height at described well seat top can be slightly higher than the height 2-3mm after bituminous concrete upper layer paves, to eliminate the collimation error after well lid installation forming。
The groove width of the groove of described annular is 30cm。
Described step 2) in the groove of annular during casting concrete, plug-in type vibrating rod is adopted to vibrate, so that well seat bottom portion by concrete compaction, fill full, immediately well lid setting height(from bottom) is checked after concreting, can immediately excavate also not solidified concrete readjust as do not met flatness requirement, until meeting the requirements。
Step 3) is strengthened when paving bituminous concrete upper layer the compaction Control of inspection shaft periphery, and scalds sealing strip by hot iron, in case wall leakage。
A kind of concrete bituminous paving inspection shaft lift structure, inspection shaft well body including middle part promotes, the well seat being arranged over cooperating of well body lifting promotes and manhole cover lifting, well seat promotes and is provided with reinforcing bar Os Draconis and cushion block lifting between the lifting of well body, well seat promotes the groove forming annular between peripheral and the Sub-course Asphalt Concrete lifting and promotes, groove also is provided with reinforcing bar Os Draconis and promotes in promoting, the groove of annular has been built microlith rapid hardening high-strength concrete layer and has been promoted in promoting, the Sub-course Asphalt Concrete promotes and microlith rapid hardening high-strength concrete layer promotes the bituminous concrete upper layer that also paved and promotes。
Described reinforcing bar Os Draconis are formed by four reinforcing bar annulus and multiple square reinforcing bar binding, and four described reinforcing bar annulus are two interior reinforcing bar annulus and two outer reinforcing bar annulus, and interior reinforcing bar annulus and outer reinforcing bar annulus are by the fixing colligation in four summits of multiple square reinforcing bars。
The groove width that the groove of described annular promotes is 30cm。
Beneficial effects of the present invention:
1, the present invention is when the lifting of well seat, it is possible to disposal molding, constructs also easier, when adopting cast-in-place concrete pad well seat, utilizes its mobility to adjust elevation, it is simple to the control of elevation, and then is conducive to improving road evenness。
2, the present invention need to promote between inspection shaft place lower structural layer and bituminous concrete upper layer, adopts cast-in-place microlith rapid hardening high-strength concrete to carry out the height of cushioning well seat。And arranging reinforcing bar Os Draconis and cushion block etc. before cast-in-place microlith rapid hardening high-strength concrete and further ensure that the height of well seat, the edge of well seat is provided with multiple expansion bolt, strengthens crystallized ability further。
Making the inspection shaft well lid absolute altitude after construction molding consistent with surrounding asphalt concrete pavement absolute altitude, flatness controls within 5mm。
3, the present invention can make inspection shaft sinkage little in the construction method that bituminous paving inspection shaft promotes, and without jumping car phenomenon in driving conditions, meets the requirement that driving is comfortable。
4, construction method provided by the invention can realize target, and cost is reasonable, workable。The lift structure stability provided is strong, and resistance to vehicle rolls, long service life。
Accompanying drawing explanation
Fig. 1 is the vertical section schematic diagram of concrete bituminous paving inspection shaft lift structure provided by the invention。
Fig. 2 be in situation 1 adopt well wordline control floor installation height time take a schematic diagram。
Fig. 3 be in situation 2 adopt well wordline control floor installation height time take a schematic diagram。
Detailed description of the invention
Further illustrate the present invention below in conjunction with embodiment, but embodiment is only that the explanation present invention, rather than be limited。
Embodiment 1:
The technique that a kind of bituminous paving inspection shaft promotes, it is characterised in that concretely comprise the following steps:
1) adopt steel plate that the well head of inspection shaft is covered and fixed, pavement spread the Sub-course Asphalt Concrete at inspection shaft to be hoisted, reversely cutting inspection shaft the Sub-course Asphalt Concrete over and around, remove steel plate, make inspection shaft peripheral and between the Sub-course Asphalt Concrete, reserve the groove of an annular；
2) groove of annular is cleaned out, then reinforcing bar Os Draconis are placed, and need height to be mounted that well seat is pre-fixed according to well seat, internal mold is installed again in inspection shaft, last microlith rapid hardening high-strength concrete of building in the groove of annular is to concordant with the Sub-course Asphalt Concrete, all to be encased by whole well seat, maintenance is to normal intensity；
3) at well seat and one layer of sticking layer oil of concrete surface brushing of building, pave bituminous concrete upper layer according to the requirement for height of bituminous paving, the lifting of bituminous paving inspection shaft can be completed。
Step 2) in when determining that well seat needs height to be mounted, its top view is as in figure 2 it is shown, adopt and take a hanging wire and be determined, concrete, by four root length lines centered by the well head of inspection shaft, pull open by " well " font, adjust the height above well seat according to well wordline。
Wherein four points of well wordline take a position such as shown in Fig. 2-Fig. 3。It is inseparable that bituminous paving inspection shaft setting height(from bottom) controls with the accuracy taking a hanging wire。And it is closely bound up with the course of paver and levelling mode to take a hanging wire。Main point of following three kinds of situations take a little。
Situation 1: as in figure 2 it is shown, when adopting a paver to pave, take 2 points on the vertical line from road axis a1.5 rice, another side takes 2 points on sleeping stone b, is taken four points corresponding extension road x wire between two；Road vertical line is that paver equalizer bar extension position takes a little four, and correspondence hangs road vertical line between two。
Situation 2: as shown in Figure 3, when adopting two pavers to pave, when well is positioned against in the scope of a paver of center line c, road x wire takes to be selected while taking 2 points on the vertical line from road axis c1.5 rice, another side takes 2 points on the vertical line from road axis c5 rice, is taken four points corresponding extension road x wire between two；Vertical line is with situation 1。When well location is in the scope of a paver of the line that keeps to the side, road x wire takes and takes 2 points on the vertical line from road axis 5 meters, and another side takes 2 points on sleeping stone e, and these 4 hanging wires, vertical line is with the first situation。
Situation 3: when well location is in little road junction, because of little road junction many employings Manual, well head altitude traverse adopts and takes a little within well week 2 meters。
When height above well seat is lower than the height of well wordline, reinforcing bar Os Draconis and cushion block is adopted to carry out padded。
The height at described well seat top can be slightly higher than the height 2-3mm after bituminous concrete upper layer paves。
The groove width of the groove of described annular is 30cm。
Described step 2) in the groove of annular during casting concrete, plug-in type vibrating rod is adopted to vibrate, so that well seat bottom portion is full by Concrete Filled, namely well seat setting height(from bottom) is checked after concreting, excavate, if any variation, the concrete built immediately and readjust shaft bottom height。
Step 3) is strengthened when paving bituminous concrete upper layer the compaction Control of inspection shaft periphery, and scalds sealing strip by hot iron, in case wall leakage。
It addition, the construction technology disclosed in the present invention is suitable for adopting the situation building the microlith padded thickness of rapid hardening high-strength concrete at more than 10mm, if add mat thickness within 10mm time, this technique need not be adopted, can effectively save cost。
As shown in Figure 1, a kind of concrete bituminous paving inspection shaft lift structure, inspection shaft well body 1 including middle part, the well seat 2 being arranged over cooperating of well body 1 and well lid 3, reinforcing bar Os Draconis 4 and cushion block 5 are installed between well seat 2 and well body 1, the groove 7 of annular is formed between well seat 2 periphery and the Sub-course Asphalt Concrete 6, reinforcing bar Os Draconis 4 it also are provided with in groove 7, microlith rapid hardening high-strength concrete layer 8, the Sub-course Asphalt Concrete 6 and the bituminous concrete upper layer 9 that also paved on microlith rapid hardening high-strength concrete layer 8 has been built in the groove 7 of annular。
Described reinforcing bar Os Draconis are formed by four reinforcing bar annulus and multiple square reinforcing bar binding, and four described reinforcing bar annulus are two interior reinforcing bar annulus and two outer reinforcing bar annulus, and interior reinforcing bar annulus and outer reinforcing bar annulus are by the fixing colligation in four summits of multiple square reinforcing bars。The groove width D of the groove 7 of described annular is 30cm。
The edge of well seat is also equipped with multiple expansion bolt, strengthens crystallized ability further。
Claims (10)
1. the technique that a bituminous paving inspection shaft promotes, it is characterised in that concretely comprise the following steps:
1) adopt steel plate that the well head of inspection shaft is covered and fixed, pavement spread the Sub-course Asphalt Concrete at inspection shaft to be hoisted, reversely cut inspection shaft the Sub-course Asphalt Concrete over and around again, remove steel plate, make inspection shaft peripheral and between the Sub-course Asphalt Concrete, reserve the groove of an annular；
2) groove of annular is cleaned out, then reinforcing bar Os Draconis are placed, and need height to be mounted that well seat is pre-fixed according to well seat, internal mold is installed again in inspection shaft, last microlith rapid hardening high-strength concrete of building in the groove of annular is to concordant with the Sub-course Asphalt Concrete, all to be encased by whole well seat, maintenance is to normal intensity；
3) at well seat and one layer of sticking layer oil of concrete surface brushing of building, pave bituminous concrete upper layer according to the requirement for height of bituminous paving, the lifting of bituminous paving inspection shaft can be completed。
2. the technique that bituminous paving inspection shaft according to claim 1 promotes, it is characterized in that: step 2) in determine well seat need height to be mounted time, employing takes a hanging wire and is determined, concrete, by four root length lines centered by the well head of inspection shaft, pull open by " well " font, adjust the height above well seat according to well wordline。
3. the technique that bituminous paving inspection shaft according to claim 2 promotes, it is characterized in that: when the height above well seat is lower than the height of well wordline, adopt reinforcing bar Os Draconis and cushion block to carry out padded, then multiple expansion bolts are installed at the edge of well seat, strengthen crystallized ability further。
4. the technique that the bituminous paving inspection shaft according to claim 1-3 any one promotes, it is characterised in that: the height at the top of described well seat is higher than the height 2-3mm after bituminous concrete upper layer paves。
5. the technique that bituminous paving inspection shaft according to claim 1 promotes, it is characterised in that: the groove width of the groove of described annular is 30cm。
6. the technique that bituminous paving inspection shaft according to claim 1 promotes, it is characterized in that: described step 2) in the groove of annular during casting concrete, vibrating head is adopted to vibrate, so that well seat bottom portion is full by Concrete Filled, namely well seat setting height(from bottom) is checked after concreting, excavate, if any variation, the concrete built immediately and readjust shaft bottom height。
7. the technique that bituminous paving inspection shaft according to claim 1 promotes, it is characterised in that: step 3) is strengthened when paving bituminous concrete upper layer the compaction Control of inspection shaft periphery, and scalds sealing strip by hot iron, in case wall leakage。
8. a concrete bituminous paving inspection shaft lift structure, it is characterized in that: include inspection shaft well body (1) at middle part, the well seat (2) being arranged over cooperating of well body (1) and well lid (3), reinforcing bar Os Draconis (4) and cushion block (5) are installed between well seat (2) and well body (1), the groove (7) of annular is formed between well seat (2) periphery and the Sub-course Asphalt Concrete (6), reinforcing bar Os Draconis (4) it also are provided with in groove (7), microlith rapid hardening high-strength concrete layer (8) has been built in the groove (7) of annular, also paved on the Sub-course Asphalt Concrete (6) and microlith rapid hardening high-strength concrete layer (8) bituminous concrete upper layer (9)。
9. concrete bituminous paving inspection shaft lift structure according to claim 8, it is characterized in that: described reinforcing bar Os Draconis are formed by four reinforcing bar annulus and multiple square reinforcing bar binding, four described reinforcing bar annulus are two interior reinforcing bar annulus and two outer reinforcing bar annulus, and interior reinforcing bar annulus welds by four summits of multiple square reinforcing bars are fixing with outer reinforcing bar annulus。
10. concrete bituminous paving inspection shaft lift structure according to claim 8, it is characterised in that: the groove width of the groove (7) of described annular is 30cm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510062708.4A CN104695300B (en) | 2015-02-06 | 2015-02-06 | The technique of a kind of bituminous paving inspection shaft lifting and lift structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510062708.4A CN104695300B (en) | 2015-02-06 | 2015-02-06 | The technique of a kind of bituminous paving inspection shaft lifting and lift structure thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104695300A CN104695300A (en) | 2015-06-10 |
| CN104695300B true CN104695300B (en) | 2016-06-22 |
Family
ID=53342817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510062708.4A Active CN104695300B (en) | 2015-02-06 | 2015-02-06 | The technique of a kind of bituminous paving inspection shaft lifting and lift structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104695300B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436875A (en) * | 2016-08-31 | 2017-02-22 | 济南城建集团有限公司 | Novel limiting frame for mounting precipitating-preventing rainwater strainer and construction method of novel limiting frame |
| CN107313456A (en) * | 2017-06-26 | 2017-11-03 | 中国建筑局（集团）有限公司 | Municipal inspection well and reverse excavation construction method thereof |
| CN108222072A (en) * | 2018-02-09 | 2018-06-29 | 武汉冶建筑安装工程有限责任公司 | Reinforced construction method is risen after asphalt concrete pavement inspection shaft |
| CN108360328B (en) * | 2018-02-27 | 2021-05-07 | 中建五局土木工程有限公司 | Construction method for compacting periphery of asphalt pavement inspection well and transition well cover |
| CN110820808A (en) * | 2018-08-10 | 2020-02-21 | 山东中宏路桥建设有限公司 | Method for installing rain sewage well cover on asphalt pavement |
| CN112142431A (en) * | 2020-06-17 | 2020-12-29 | 湖北益通建设股份有限公司 | High-content phosphogypsum stabilizing material of framework system and application thereof in road base |
| CN112125576B (en) * | 2020-07-09 | 2021-11-02 | 湖北益通建设股份有限公司 | Phosphogypsum-based aggregate warm-mix asphalt mixture |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07233537A (en) * | 1994-02-19 | 1995-09-05 | Roger W Paulson | Cut-off device for paved road surface |
| KR20090001343A (en) * | 2007-06-29 | 2009-01-08 | 김영달 | Manhole assembly with locking apparatus |
| CN201411713Y (en) * | 2009-06-15 | 2010-02-24 | 安徽省交通勘察设计院 | Manhole of various kinds of pipe networks for urban roads having hole mouth reinforcing mechanism |
| CN102409594A (en) * | 2011-09-16 | 2012-04-11 | 无锡市政设计研究院有限公司 | Method for carrying out compaction on pavement around well through rolling and transitional well cover for compaction |
| CN102644295A (en) * | 2012-04-28 | 2012-08-22 | 江苏阳湖建设项目管理有限公司 | Construction method for preventing peripheral and local sedimentation of road surface inspection well |
| CN202390857U (en) * | 2012-01-10 | 2012-08-22 | 刘建华 | Inspection wellhead reinforcement structure |
| CN203403438U (en) * | 2013-06-14 | 2014-01-22 | 武汉市政工程设计研究院有限责任公司 | Inspection well cover with protective construction die ring |
| CN203716181U (en) * | 2014-01-15 | 2014-07-16 | 青岛市城乡建设委员会 | Anti-subsidence structural body on well mouth periphery of round inspection well |
| CN204435151U (en) * | 2015-02-06 | 2015-07-01 | 湖北益通建设股份有限公司 | A kind of flexible pavement manhole lift structure |
-
2015
- 2015-02-06 CN CN201510062708.4A patent/CN104695300B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07233537A (en) * | 1994-02-19 | 1995-09-05 | Roger W Paulson | Cut-off device for paved road surface |
| KR20090001343A (en) * | 2007-06-29 | 2009-01-08 | 김영달 | Manhole assembly with locking apparatus |
| CN201411713Y (en) * | 2009-06-15 | 2010-02-24 | 安徽省交通勘察设计院 | Manhole of various kinds of pipe networks for urban roads having hole mouth reinforcing mechanism |
| CN102409594A (en) * | 2011-09-16 | 2012-04-11 | 无锡市政设计研究院有限公司 | Method for carrying out compaction on pavement around well through rolling and transitional well cover for compaction |
| CN202390857U (en) * | 2012-01-10 | 2012-08-22 | 刘建华 | Inspection wellhead reinforcement structure |
| CN102644295A (en) * | 2012-04-28 | 2012-08-22 | 江苏阳湖建设项目管理有限公司 | Construction method for preventing peripheral and local sedimentation of road surface inspection well |
| CN203403438U (en) * | 2013-06-14 | 2014-01-22 | 武汉市政工程设计研究院有限责任公司 | Inspection well cover with protective construction die ring |
| CN203716181U (en) * | 2014-01-15 | 2014-07-16 | 青岛市城乡建设委员会 | Anti-subsidence structural body on well mouth periphery of round inspection well |
| CN204435151U (en) * | 2015-02-06 | 2015-07-01 | 湖北益通建设股份有限公司 | A kind of flexible pavement manhole lift structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104695300A (en) | 2015-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104695300B (en) | The technique of a kind of bituminous paving inspection shaft lifting and lift structure thereof | |
| CN204435151U (en) | A kind of flexible pavement manhole lift structure | |
| CN106958186B (en) | The construction method of bridge floor body, bridge and bridge | |
| WO2014015739A1 (en) | Inspection well apparatus resistant to differential settlement and method of constructing same | |
| CN105200868A (en) | Novel slab ballastless track structure | |
| LU501207B1 (en) | Structure and method for reinforcing manhole cover anchored with existing road surface foundation by means of dowel bars | |
| CN111764216A (en) | Construction method and application of fabricated concrete road plate | |
| CN105064209B (en) | A kind of deck paving leveling Rotating fields and its leveling method | |
| CN205242181U (en) | Novel board -like ballastless track structure | |
| CN107460890A (en) | A kind of city bituminous concrete pavement inspection shaft construction method | |
| CN108360328B (en) | Construction method for compacting periphery of asphalt pavement inspection well and transition well cover | |
| CN103382699B (en) | Construction method for bridge deck pavement layer on steel bridge | |
| CN105401525B (en) | Cast-in-situ construction method of beam flange plates of acoustic barriers through movable mold base vehicles | |
| CN207211362U (en) | A kind of basement bottom board fish tail and waterproof layer | |
| CN103306439A (en) | Pouring technology for implanting high anti-leakage and anti-crack protective layer into roof structure layer | |
| CN107642109A (en) | A kind of town road heavy well cover walling crib ruggedized construction and its construction method | |
| CN210766280U (en) | Curb prefabricated assembly side form | |
| CN207228166U (en) | A kind of town road heavy well cover walling crib ruggedized construction | |
| CN107059574A (en) | A kind of method of concrete structure and its prefabricated assembled cement concrete pavement of leveling | |
| CN205893830U (en) | Low solid formula support rail girder construction of circuit of putting of well low -speed maglev traffic engineering | |
| CN212533538U (en) | Vibration reduction box type roadbed structure | |
| CN204898452U (en) | Platform back of body structure of road bed either end of a bridge | |
| CN111042206A (en) | Waterproof construction method for underground engineering node | |
| CN210507007U (en) | Roadbed structure suitable for unilateral heavy-load transportation | |
| CN111926649A (en) | Reinforced integrally-built crossing plate for railway special line and line rail fixing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |